G'day Whiplash,
What you need to do once you settle is to get your defence evidence together, whether you are going to run your own case or get a mouthpiece.
If you are pleading wet weather (and an oil slick on the road) as the primary cause, get a hard copy weather printout.
Record under today's date the time, traffic conditions, and that you weren't running late for work, and a photo of the site where you were nabbed at about the same time on another work day. Anything else too that's relevant.
You'll give yourself the best chance with the beak if you prepare thoroughly, and dress to impress, but relevant to the your work. eg. don't turn up in an Armani suit if you are a builder, but also don't turn up in steel capped boots. Just show repect to the court.
Finally rehearse the whole thing to sound and look sincere, and that being so privileged to drive a classic Stang, that you are normally are a careful and responsible driver. Grovel and express profound remorse if you are struggling.
And pray like hell that the beak scores the night before, and arrives in a really good mood. :f
I've walked free on my last two minor traffic offence appearances by following such advice from my barrister cousin.
Best of good luck.
